Welcome to two days of hacking for openness and sustainability at the OKFestival in Helsinki. This is an opportunity to meet great developers and sustainability experts and to help out our planet with some innovative coding.

This event is part of the Green Hackathon series of events taking place across Europe and it will comprise two days of working hands-on to improve and disseminate sustainability data. It will begin with a short presentation on Wednesday morning (Sept. 19) and end with a Show-and-Tell of the results (Sept. 20).

The focus will be on opening up and improving existing sustainability data and improving existing applications. The following challenges will be featured in the programme (time slots during Wednesday and Thursday will be confirmed in case you would like to drop by for their hacking session):

Many different contributions are welcome, including coders, designers, data specialists, economists or sustainability thinkers. The participation format is flexible, you can stay for the whole two days or drop in and out helping out some existing team. Participation is free and a OKFestival ticket is not required. Come along and help us with the challenge of opening up sustainability knowledge and making it more accessible!

Velichka is Project Coordinator of Open Economics at the Open Knowledge Foundation. She is based in London, a graduate of economics (Humboldt Universität zu Berlin) and environmental policy (University of Cambridge) and a fellow of the Heinrich Böll Foundation @vndimitrova